Fine blanking progressive die for producing large-conical-surface bearing pressing plate
By designing a fine blanking progressive die that integrates upsetting, blanking, and punching functions, the problems of low processing efficiency and high cost of large conical bearing pressure plates have been solved, enabling efficient and low-cost continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN PANZHOU PRECISION TECH CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-19
AI Technical Summary
The existing processing technology for large tapered bearing plates is inefficient, costly, and involves many steps, making it difficult to meet the requirements for bearing installation inside reducers and gearboxes.
Design a fine blanking progressive die, including an upper die assembly and a lower die assembly. By integrating upsetting, blanking and punching functions into one unit, the pre-drilling, upsetting and blanking steps can be completed simultaneously in continuous production, simplifying the processing flow.
It improves processing efficiency, reduces production steps, lowers costs, and achieves high mold integration and stable material delivery.
Smart Images
Figure CN224254008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to a fine blanking progressive die for the production of large conical bearing pressure plates. Background Technology
[0002] When installing bearings inside reducers and gearboxes, bearing clamps are used to axially compress the bearings. Due to the compact internal space of the gearbox, countersunk bolts are typically used to load the bearing clamps onto the bearing clamps. Therefore, the bearing clamps are designed with bolt mounting holes and tapered surfaces to ensure that the countersunk bolts do not protrude beyond the bearing clamps after installation. The typical manufacturing process for these parts is: blanking → upsetting the tapered surface → punching, which involves many production steps, resulting in low efficiency and high cost. Utility Model Content
[0003] This invention provides a fine blanking progressive die for the production of large conical bearing pressure plates, aiming to solve the problems in the prior art.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0005] A fine blanking progressive die for producing large tapered bearing pressure plates includes an upper die assembly and a lower die assembly. The upper die assembly includes an upper die pad, a middle die plate, a gear ring fixing plate, a pitch hole punch, a pre-hole punch, and a blanking punch. The upper die pad is horizontally fixed. The middle die plate is horizontally distributed below the upper die pad and can move up and down. The gear ring fixing plate is horizontally fixed on the middle die plate. The pitch hole punch and the pre-hole punch are fixedly mounted side by side on the upper die pad, respectively vertically penetrating the middle die plate and the gear ring fixing plate and slidingly connected. The blanking punch is fixedly mounted on the upper die pad, penetrating the middle die plate and the gear ring fixing plate and slidingly connected.
[0006] The lower die assembly includes a lower die plate, a lower die pad, a die fixing plate, an ejector bar, an upsetting and chamfering punch, a round hole punch, and a push plate. The lower die plate is horizontally installed below the upper die pad and can move up and down. The lower die pad is horizontally distributed above the lower die plate and is connected to the lower die plate by an elastic component to float up and down. The die fixing plate is horizontally fixedly installed on the lower die pad. The ejector bar is vertically installed on the lower die plate and mates with the die holes for the pitch hole and pre-hole. It can move up and down and passes through the lower die pad and the die fixing plate. The upsetting and chamfering punch is vertically fixedly installed on the lower die plate and passes through the lower die pad and the die fixing plate. The round hole punch is vertically fixedly installed on the lower die pad, passes through the die fixing plate, and mates with the push plate. The push plate is installed on the die fixing plate and can move up and down.
[0007] The beneficial effects of this utility model are as follows: During the processing, after the mold starts working, the strip is first sent to the first station. The lower mold moves upward, and the toothed ring and the die first press the strip. It continues to move downward, and the pre-hole punch and the pitch hole punch complete the punching of the pre-hole and the pitch hole. The lower mold returns, and the ejector bar of the lower mold pushes the punching waste to the die surface. The powerful airflow of the machine tool blows the waste out and cleans it out of the mold.
[0008] The equipment moves the strip forward by one step length, the lower die moves upward again, the gear ring and the die first press the strip together, the upsetting punch pushes out from the die, upsetting the material in the four pre-holes to form four large conical surfaces. The four pre-holes punched in the first step can now facilitate the flow of the material extruded during the upsetting of the conical surfaces and fill the pre-holes. The lower die then returns.
[0009] The equipment moves the strip forward another step length. The gear ring and die clamp the strip, and the blanking punch ejects from the gear ring plate, punching the material from the strip into the die surface, completing the punching of the part's shape. Simultaneously, as the push plate descends during the punching process, the four small round holes and the large round hole punch installed in the push plate are ejected, completing the punching of the round holes. After these actions are completed, the lower and upper dies return, and the ejector rod pushes the push plate back, thus ejecting the punched part from the die surface. The machine tool's powerful airflow moves the part from the center of the die and blows it onto the conveyor belt. In continuous production, these three steps are completed synchronously and sequentially in each punching stroke.
[0010] This utility model has a compact structure and reasonable design, and provides a precision progressive die that integrates upsetting, blanking and punching into one unit with high processing efficiency. It has fewer production steps, higher efficiency and lower cost.
[0011] Based on the above technical solution, the present invention can be further improved as follows.
[0012] Furthermore, the upper mold assembly also includes a gear ring pad, which is horizontally embedded in the middle mold plate and fixedly connected to the gear ring fixing plate.
[0013] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The addition of a gear ring pad between the middle template and the gear ring fixing plate facilitates the fixed connection of the gear ring insert.
[0014] Furthermore, the upper mold assembly also includes a force transmission rod, which vertically passes through the upper mold pad and the middle mold plate and then fits against the gear ring pad.
[0015] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The force transmission rod is connected to the hydraulic cylinder on the machine tool to provide the power for the gear ring pad to move up and down.
[0016] Furthermore, the upper mold assembly also includes an upper template, which is horizontally fixed; the upper mold pad is horizontally fixedly installed on the upper template.
[0017] The advantages of adopting the above-mentioned further solution are that it has a simple structure, reasonable design, fixed connection between the upper template and the machine tool, and provides a carrier for the assembly of various components.
[0018] Furthermore, the upper mold assembly also includes an inlet material hanger and an outlet material hanger, which are respectively fixedly installed at both ends of the middle mold plate and are used for feeding materials.
[0019] The advantages of adopting the above-mentioned further scheme are that the structure is simple and the design is reasonable. The material is hung by the inlet hanging rack and the outlet hanging rack respectively, which ensures the stability of material conveying.
[0020] Furthermore, a gear ring insert is embedded in the gear ring fixing plate, and the gear ring insert is fixedly connected to the gear ring pad.
[0021] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. By embedding the gear ring insert on the gear ring fixing plate, it is easy to replace, avoids the entire gear ring fixing plate, and has low cost.
[0022] Furthermore, the upper mold assembly also includes a round hole ejector rod, which vertically penetrates the upper mold pad, the middle mold plate, and the gear ring fixing plate and can move up and down.
[0023] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The round hole ejector bar moves up and down together with the round hole punch and the waste material so that the round hole ejector bar can push out the punched waste material, realize automatic material unloading, and achieve high processing efficiency.
[0024] Furthermore, the lower mold assembly also includes a plurality of step pins, which are fixedly mounted at intervals on the die fixing plate.
[0025] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. Multiple step pins are used to position the processing material, which avoids the displacement of the processing material during the processing and eliminates the feeding deviation of the equipment, thereby ensuring the positional accuracy between each processing step.
[0026] Furthermore, the lower mold assembly also includes an ejector rod, which vertically penetrates the lower mold plate, the lower mold pad, and the cavity mold fixing plate and moves up and down. The ejector rod is in contact with the push plate.
[0027] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The ejector rod pushes the push plate back, thereby ejecting the punched part from the die surface. The powerful airflow of the machine tool moves the part from the middle of the die and blows it onto the conveyor belt.
[0028] Furthermore, a die insert is embedded in the die fixing plate, and the push plate is mounted on the die insert and can move up and down.
[0029] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. By embedding the die insert on the die fixing plate, it is easy to replace, avoids the entire die fixing plate, and has low cost. Attached Figure Description
[0030] Figure 1 This is the overall assembly drawing of this utility model;
[0031] Figure 2 This is an overall sectional view of the present invention;
[0032] Figure 3 This is a schematic diagram of the upper mold assembly in this utility model;
[0033] Figure 4 for Figure 3 Enlarged view of A in the middle;
[0034] Figure 5 for Figure 3 Enlarged view of B in the middle;
[0035] Figure 6 This is a schematic diagram of the lower mold assembly in this utility model;
[0036] Figure 7 for Figure 6 Enlarged view of C;
[0037] Figure 8 for Figure 6 Enlarged view of D;
[0038] Figure 9 This is a schematic diagram of the structure of the parts in this utility model;
[0039] Figure 10 for Figure 9 Sectional view of E in the middle;
[0040] Figure 11 This is a schematic diagram of the structure during the machining of the parts in this utility model;
[0041] Figure 12 for Figure 11 Sectional view of F.
[0042] The attached diagram lists the components represented by each number as follows:
[0043] 101. Upper template; 102. Upper mold backing plate; 103. Middle template; 104. Gear ring backing plate; 105. Gear ring fixing plate; 106. Pitch hole punch; 107. Pre-hole punch; 108. Guide post and guide sleeve assembly; 109. Force transmission rod; 110. Blanking punch; 111. Gear ring insert; 112. Round hole ejector rod; 113. Outlet hanging rack; 114. Inlet hanging rack;
[0044] 1. Lower die plate; 2. Lower die pad; 3. Die fixing plate; 4. Ejector rod; 5. Upsetting and chamfering punch; 6. Pitch pin; 7. Round hole punch; 8. Push plate; 9. Die insert; 10. Ejector rod; 11. Part. Detailed Implementation
[0045] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0048] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0049] Example 1
[0050] like Figures 1 to 12As shown, this embodiment provides a fine blanking progressive die for the production of large tapered bearing pressure plates, including an upper die assembly and a lower die assembly. The upper die assembly includes an upper die pad 102, a middle die plate 103, a gear ring fixing plate 105, a pitch hole punch 106, a pre-hole punch 107, and a blanking punch 110. The upper die pad 102 is horizontally fixed. The middle die plate 103 is horizontally distributed below the upper die pad 102 and can move up and down. The gear ring fixing plate 105 is horizontally fixed on the middle die plate 103. The pitch hole punch 106 and the pre-hole punch 107 are fixedly installed side by side on the upper die pad 102, and they vertically penetrate the middle die plate 103 and the gear ring fixing plate 105 respectively and are slidably connected. The blanking punch 110 is fixedly installed on the upper die pad 102, and it penetrates the middle die plate 103 and the gear ring fixing plate 105 and is slidably connected.
[0051] The lower die assembly includes a lower die plate 1, a lower die pad 2, a die fixing plate 3, an ejector bar 4, an upsetting and chamfering punch 5, a round hole punch 7, and a push plate 8. The lower die plate 1 is horizontally installed below the upper die pad 102 and can move up and down. The lower die pad 2 is horizontally distributed above the lower die plate 1 and is connected to the lower die plate 1 by an elastic component to float up and down. The die fixing plate 3 is horizontally fixedly installed on the lower die pad 2. The ejector bar 4 is vertically installed on the lower die pad 2. The template 1 has a concave mold hole that mates with the step hole and the pre-hole, and it can move up and down, and it passes through the lower mold pad 2 and the concave mold fixing plate 3; the upsetting and chamfering punch 5 is vertically fixed on the lower template 1 and passes through the lower mold pad 2 and the concave mold fixing plate 3; the round hole punch 7 is vertically fixed on the lower mold pad 2, passes through the concave mold fixing plate 3, and mates with the push plate 8; the push plate 8 is mounted on the concave mold fixing plate 3 and can move up and down.
[0052] During the processing, after the mold starts working, the strip is first sent to the first station. The lower mold moves upward, and the gear ring and the die clamp the strip. It continues to move downward. The pre-hole punch 107 and the pitch hole punch 106 complete the punching of the pre-hole and pitch hole. The lower mold returns, and the ejector bar 4 of the lower mold pushes the punching waste to the die surface. The powerful airflow of the machine tool blows the waste out and cleans it out of the mold.
[0053] The equipment moves the strip forward by one step length, the lower die moves upward again, the gear ring and the die first press the strip together, the upsetting punch pushes out from the die, upsetting the material in the four pre-holes to form four large conical surfaces. The four pre-holes punched in the first step can now facilitate the flow of the material extruded during the upsetting of the conical surfaces and fill the pre-holes. The lower die then returns.
[0054] The equipment moves the strip forward another step length. The gear ring and die first clamp the strip, and the blanking punch 110 ejects from the gear ring insert 111, punching the material from the strip into the die surface, completing the punching of the part's shape. Simultaneously, as the push plate 8 descends during the punching process, the four small round holes and the large central round hole punch installed in the push plate 8 are ejected from the push plate 8, simultaneously completing the punching of the round holes. After the above actions are completed, the lower and upper dies return, and the ejector rod 10 pushes the push plate 8 back, thus ejecting the punched part from the die surface. The machine tool's powerful airflow moves the part from the center of the die and blows it onto the conveyor belt. In continuous production, the above three steps are completed synchronously and sequentially in each stamping stroke.
[0055] Preferably, in this embodiment, the upper mold pad 102, the middle mold plate 103 and the gear ring fixing plate 105 are respectively rectangular plate structures.
[0056] Preferably, in this embodiment, the lower template 1, the lower mold pad 2, and the concave mold fixing plate 3 are all rectangular plate structures.
[0057] This embodiment features a compact structure and reasonable design, providing a high-efficiency precision progressive die that integrates upsetting, blanking, and punching. It has fewer production steps, higher efficiency, and lower cost.
[0058] Example 2
[0059] Based on Embodiment 1, in this embodiment, the upper mold assembly further includes a gear ring pad 104, which is horizontally embedded in the middle mold plate 103 and fixedly connected to the gear ring fixing plate 105.
[0060] The scheme has a simple structure and reasonable design. A gear ring pad 104 is added between the middle template 103 and the gear ring fixing plate 105 to increase the strength of the middle template 103 and facilitate the fixed connection of the gear ring insert.
[0061] Preferably, in this embodiment, the gear ring pad 104 has a rectangular plate structure.
[0062] In addition, the aforementioned template 103, gear ring pad 104 and gear ring fixing plate 105 are integrated as a whole and can move up and down.
[0063] Example 3
[0064] Based on Embodiment 2, in this embodiment, the upper mold assembly further includes a force transmission rod 109, which vertically penetrates the upper mold pad 102 and the middle mold plate 103 and then fits against the gear ring pad 104.
[0065] The solution has a simple structure and reasonable design. The force transmission rod 109 is connected to the hydraulic cylinder on the machine tool to provide power for the gear ring pad 104 to move up and down.
[0066] Example 4
[0067] Based on any one of Embodiments 2 to 3, in this embodiment, the upper mold assembly further includes an upper template 101, which is horizontally fixed; the upper mold pad 102 is horizontally fixedly installed on the upper template 101.
[0068] The solution has a simple structure and a reasonable design. The upper template 101 is fixedly connected to the machine tool and provides a carrier for assembling various components.
[0069] Preferably, in this embodiment, the upper template 101 is a rectangular plate structure.
[0070] Example 5
[0071] Based on any one of Embodiments 2 to 4, in this embodiment, the upper mold assembly further includes an inlet hanging rack 114 and an outlet hanging rack 113, which are respectively fixedly installed at both ends of the middle mold plate 103 and are used for feeding materials.
[0072] The solution has a simple structure and reasonable design. It uses the inlet hanging rack 114 and the outlet hanging rack 113 to hang materials, ensuring the stability of material conveying.
[0073] Example 6
[0074] Based on any one of Embodiments 2 to 5, in this embodiment, a gear ring insert 111 is embedded on the gear ring fixing plate 105, and the gear ring insert 111 is fixedly connected to the gear ring pad 104.
[0075] The solution has a simple structure and reasonable design. By embedding the gear ring insert 111 on the gear ring fixing plate 105, it is easy to replace and avoids replacing the entire gear ring fixing plate 105, thus reducing costs.
[0076] Preferably, in this embodiment, the gear ring fixing plate 105 is provided with an insert groove, and the gear ring insert 111 is inserted into the insert groove.
[0077] Example 7
[0078] Based on the above embodiments, in this embodiment, the upper mold assembly further includes a round hole ejector rod 112, which vertically penetrates the upper mold pad 102, the middle mold plate 103 and the gear ring fixing plate 105 and can move up and down.
[0079] The scheme has a simple structure and reasonable design. The round hole ejector rod 112 moves up and down together with the round hole punch and the waste material so that the round hole ejector rod 112 can push out the punched waste material, realize automatic material unloading, and achieve high processing efficiency.
[0080] Preferably, in this embodiment, the above-mentioned round hole ejector rod 112 is fixedly connected to the hydraulic cylinder on the machine tool, and the hydraulic cylinder drives the round hole ejector rod 112 to move up and down to eject the material.
[0081] Example 8
[0082] Based on the above embodiments, in this embodiment, the lower mold assembly further includes a plurality of step pins 6, which are fixedly installed at intervals on the concave mold fixing plate 3.
[0083] The scheme has a simple structure and reasonable design. It uses multiple step pins to position the processing material, avoids displacement of the processing material during processing and eliminates the feeding deviation of the equipment, thereby ensuring the positional accuracy between each processing step.
[0084] Preferably, in this embodiment, the processing of the above-mentioned part 11 includes three steps: step one: punching the step distance hole and pre-drilling; step two: punching the step distance hole and pre-drilling; and step three: fine blanking (refer to...). Figures 9 to 12 ).
[0085] In addition, the number of the aforementioned step pins 6 is preferably four. Two step pins 6 are set in step two and step three respectively to limit the strip material, and four limiting holes are correspondingly set on the strip material.
[0086] Example 9
[0087] Based on the above embodiments, in this embodiment, the lower mold assembly further includes an ejector rod 10, which vertically penetrates the lower mold plate 1, the lower mold pad 2 and the cavity mold fixing plate 3 and moves up and down, and the ejector rod 10 is in contact with the push plate 8.
[0088] This design is simple and reasonable. The ejector rod 10 pushes the push plate 8 back, thus ejecting the punched part from the die surface. The machine tool's powerful airflow then moves the part from the center of the die and onto the conveyor belt. Throughout the process, the upper end of the ejector rod 10 remains in contact with the push plate 8.
[0089] Preferably, in this embodiment, the ejector rod 10 is fixedly connected to the hydraulic cylinder on the machine tool, and the hydraulic cylinder drives the ejector rod 10 to move up and down to eject the material.
[0090] Preferably, in this embodiment, the above-mentioned elastic component is a rectangular spring, and the lower template 1 is provided with a groove, and the rectangular spring is installed in the groove; the lower mold pad 2 is connected to the lower template 1 through the elastic component and floats up and down.
[0091] In addition, there is a 5mm floating space between the lower mold pad 2 and the lower mold plate 1.
[0092] Preferably, in this embodiment, the lower template 1 and the upper template 101 are slidably connected vertically by four guide post and guide sleeve assemblies 108. Each guide post and guide sleeve assembly 108 includes a guide post and a guide sleeve. The guide sleeve is vertically fixedly installed on the upper template 101 and its lower end is open. The guide post is vertically fixedly installed on the lower template 1, and its upper end extends into the guide sleeve and is slidably connected vertically with the guide sleeve.
[0093] Example 10
[0094] Based on the above embodiments, in this embodiment, the die fixing plate 3 is fitted with a die insert 9, and the push plate 8 is installed on the die insert 9 and can move up and down.
[0095] The solution has a simple structure and reasonable design. By embedding the die insert on the die fixing plate 3, it is easy to replace and avoids replacing the entire die fixing plate 3, thus reducing costs.
[0096] The working principle of this utility model is as follows:
[0097] During the processing, after the mold starts working, the strip is first sent to the first station. The lower mold moves upward, and the gear ring and the die first press the strip. It continues to move upward, and the pre-hole punch 107 and the pitch hole punch 106 complete the punching of the pre-hole and pitch hole. The lower mold returns, and the ejector bar 4 of the lower mold pushes the punching waste to the die surface. The powerful airflow of the machine tool blows the waste out and cleans it out of the mold.
[0098] The equipment moves the strip forward by one step length, the lower die moves upward again, the gear ring and the die first press the strip together, the upsetting punch 5 is ejected from the die, and the material of the four pre-holes is upset to form four large conical surfaces. The four pre-holes punched in the first step can now facilitate the flow of the material extruded during the upsetting of the conical surfaces and fill the pre-holes. The lower die returns.
[0099] The equipment moves the strip forward another step length. The gear ring and die first clamp the strip, and the blanking punch 110 ejects from the gear ring insert, punching the material from the strip into the die surface, completing the punching of the part's shape. Simultaneously, during the punching process, as the push plate 8 descends, the four small round holes and the large central round hole punch installed in the push plate 8 are ejected from the push plate 8, simultaneously completing the punching of the round holes. After the above actions are completed, the lower and upper dies return, and the ejector rod 10 pushes the push plate 8 back, thus ejecting the punched part from the die surface. The machine tool's powerful airflow moves the part from the center of the die and blows it onto the conveyor belt. In continuous production, the above three steps are completed synchronously and sequentially in each stamping stroke.
[0100] This utility model provides a mold that can sequentially perform three steps in one operation: punching pre-hole, upsetting conical surface, and fine blanking. Its advantages are: high mold integration, high production efficiency, and low cost.
[0101] It should be noted that all electronic components involved in this utility model adopt existing technology, and all the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is existing technology.
[0102] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0103] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0104] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fine blanking progressive die for producing a thrust plate of a tapered roller bearing, characterized by: The assembly includes an upper die assembly and a lower die assembly. The upper die assembly includes an upper die pad (102), a middle die plate (103), a gear ring fixing plate (105), a pitch hole punch (106), a pre-hole punch (107), and a blanking punch (110). The upper die pad (102) is horizontally fixed. The middle die plate (103) is horizontally distributed below the upper die pad (102) and can move up and down. The gear ring fixing plate (105) is horizontally fixed. On the middle template (103), the step hole punch (106) and the pre-hole punch (107) are fixedly installed side by side on the upper die pad (102), which respectively vertically penetrate the middle template (103) and the gear ring fixing plate (105) and are slidably connected; the blanking punch (110) is fixedly installed on the upper die pad (102), which penetrates the middle template (103) and the gear ring fixing plate (105) and is slidably connected; The lower die assembly includes a lower die plate (1), a lower die pad (2), a die fixing plate (3), an ejector bar (4), an upsetting and chamfering punch (5), a round hole punch (7), and a push plate (8). The lower die plate (1) is horizontally installed below the upper die pad (102) and can move up and down. The lower die pad (2) is horizontally distributed above the lower die plate (1) and is connected to the lower die plate (1) by an elastic component to float up and down. The die fixing plate (3) is horizontally fixed on the lower die pad (2). The ejector bar (4) is vertically installed on the upper die pad (2). The lower template (1) is fitted with the recessed die hole that is used for the layout step hole and the pre-hole. It can move up and down and passes through the lower die pad (2) and the die fixing plate (3). The upsetting and chamfering punch (5) is vertically fixed on the lower template (1) and passes through the lower die pad (2) and the die fixing plate (3). The round hole punch (7) is vertically fixed on the lower die pad (2), passes through the die fixing plate (3), and fits with the push plate (8). The push plate (8) is installed on the die fixing plate (3) and can move up and down.
2. The fine blanking progressive die for producing a large taper bearing plate according to claim 1, wherein: The upper mold assembly also includes a gear ring pad (104), which is horizontally embedded in the middle mold plate (103) and fixedly connected to the gear ring fixing plate (105).
3. The fine blanking progressive die for producing a large taper bearing plate according to claim 2, wherein: The upper mold assembly also includes a force transmission rod (109), which vertically passes through the upper mold pad (102) and the middle mold plate (103) and then fits against the gear ring pad (104).
4. The fine blanking progressive die for producing a large taper bearing plate according to claim 2, wherein: The upper mold assembly also includes an upper template (101), which is horizontally fixed; the upper mold pad (102) is horizontally fixed on the upper template (101).
5. The fine blanking progressive die for production of a large cone bearing press plate according to claim 2, characterized in that: The upper mold assembly also includes an inlet hanging rack (114) and an outlet hanging rack (113), which are respectively fixedly installed at both ends of the middle mold plate (103) and are used for feeding materials.
6. The fine blanking progressive die for production of a large cone bearing press plate according to claim 2, characterized in that: A gear ring insert (111) is embedded in the gear ring fixing plate (105), and the gear ring insert (111) is fixedly connected to the gear ring pad (104).
7. The fine blanking progressive die for producing a thrust plate of a tapered roller bearing according to any one of claims 1 to 6, characterized in that: The upper mold assembly also includes a round hole ejector rod (112), which vertically penetrates the upper mold pad (102), the middle mold plate (103), and the gear ring fixing plate (105) and can move up and down.
8. The fine blanking progressive die for producing a thrust plate of a tapered roller bearing according to any one of claims 1 to 6, characterized in that: The lower mold assembly also includes a plurality of step pins (6), which are fixedly installed at intervals on the die fixing plate (3).
9. The fine blanking progressive die for producing a thrust plate of a tapered roller bearing according to any one of claims 1 to 6, characterized in that: The lower mold assembly also includes an ejector rod (10), which vertically penetrates the lower mold plate (1), the lower mold pad (2) and the cavity mold fixing plate (3) and moves up and down. The ejector rod (10) is in contact with the push plate (8).
10. The fine blanking progressive die for producing a thrust plate of a tapered roller bearing according to any one of claims 1 to 6, characterized in that: The die fixing plate (3) is fitted with a die insert (9), and the push plate (8) is installed on the die insert (9) and can move up and down.